A student half a jar with rice and tightens the jars lid. The student wants to use the jar of rice to model particle motion of a substance in any state of matter. A. Describe how the student can use the jar of rice to model particle motion of a substance in each state of matter: solid, liquid, gas.

because the jar is see through so it allows you to watch the motion

Explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.